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OpenGL2: Add normalScale and parallaxDepth stage keywords and helper cvars.

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This commit is contained in:
SmileTheory 2014-03-03 21:02:39 -08:00
parent ea2810c085
commit ee67d0a981
7 changed files with 224 additions and 45 deletions
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17
code/renderergl2/glsl/lightall_fp.glsl
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@ -25,7 +25,8 @@ uniform samplerCube u_CubeMap;
#endif
#if defined(USE_NORMALMAP) || defined(USE_DELUXEMAP) || defined(USE_SPECULARMAP) || defined(USE_CUBEMAP)
uniform vec4 u_EnableTextures; // x = normal, y = deluxe, z = specular, w = cube
// y = deluxe, w = cube
uniform vec4 u_EnableTextures;
#endif
#if defined(USE_LIGHT_VECTOR) && !defined(USE_FAST_LIGHT)
@ -39,7 +40,8 @@ uniform vec3 u_PrimaryLightAmbient;
#endif
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
uniform vec2 u_MaterialInfo;
uniform vec4 u_NormalScale;
uniform vec4 u_SpecularScale;
#endif
varying vec4 var_TexCoords;
@ -360,7 +362,7 @@ void main()
#if defined(USE_PARALLAXMAP)
vec3 offsetDir = normalize(E * tangentToWorld);
offsetDir.xy *= -0.05 / offsetDir.z;
offsetDir.xy *= -u_NormalScale.a / offsetDir.z;
texCoords += offsetDir.xy * RayIntersectDisplaceMap(texCoords, offsetDir.xy, u_NormalMap);
#endif
@ -378,7 +380,7 @@ void main()
#else
N.xy = texture2D(u_NormalMap, texCoords).rg - vec2(0.5);
#endif
N.xy *= u_EnableTextures.x;
N.xy *= u_NormalScale.xy;
N.z = sqrt(clamp((0.25 - N.x * N.x) - N.y * N.y, 0.0, 1.0));
N = tangentToWorld * N;
#else
@ -425,15 +427,16 @@ void main()
NL = clamp(dot(N, L), 0.0, 1.0);
NE = clamp(dot(N, E), 0.0, 1.0);
vec4 specular = vec4(1.0);
#if defined(USE_SPECULARMAP)
specular += texture2D(u_SpecularMap, texCoords) * u_EnableTextures.z - u_EnableTextures.zzzz;
vec4 specular = texture2D(u_SpecularMap, texCoords);
#if defined(USE_GAMMA2_TEXTURES)
specular.rgb *= specular.rgb;
#endif
#else
vec4 specular = vec4(1.0);
#endif
specular *= u_MaterialInfo.xxxy;
specular *= u_SpecularScale;
float gloss = specular.a;
float shininess = exp2(gloss * 13.0);